Course details

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Basic of  Lifting and Conveying Machinery

Teaching: Completely taught in English

ECTS: 4

Level: Graduate

Semester: Summer

Prerequisites:

No conditions.

Load:

Lectures	Exercises	Laboratory exercises	Project laboratory	Physical education excercises	Field exercises	Seminar	Design exercises	Practicum
30		0	0	0	0	0	0	0

Course objectives:

Familiarizing and study of the Lifting and Conveying Machinery construction elements, their usage, choice and the methods of calculation.

Student responsibilities:

Grading and evaluation of student work over the course of instruction and at a final exam:

Activity during classes (lectures and exercises) - 5%, Preliminary exam - 55%, Oral exam - 15%

Methods of monitoring quality that ensure acquisition of exit competences:

On each exercise a task is given from the explained chapter as homework assignment.

Upon successful completion of the course, students will be able to (learning outcomes):

After the course is successfully completed, student will be able to: - differentiate lifting and conveying machinery according to type of transfer and application field; - derive: efficiency in working and braking mode, stable drive resistances, transfer ratio of a combined mechanism; - create a sketch for a given pulley with sheave speed kinematics and related transfer ratio; - recognize, calculate and choose steel rope according to given work conditions; - asses application fields for a given gripe system; - use calculation methods for simple elements of lifting and conveying machinery

Lectures

1. Fundamentals: terminology, classification, significance and importance of materials handling and conveying. Characteristics and types of the conveying and lifting machinery, conveyer capacity. Characteristics of transported materials.

2. The elements of the lifting machinery: lifting appliances; lifting tackles, basic principles for rope drives, computation and design.

3. Kinematic and dynamic analysis of the lifting mechanisms. Reduced mass of inertia and reduced force. The equation of motion of the mechanism. The velocity and acceleration of motion.

4. Motion resistance, specific resistances, drive power.

5. Drive mechanisms motion phases and transportation system speed choice.

6. Reduced mass of inertia and reduced force. The equation of motion of the mechanism.

7. The velocity and acceleration of motion, efficiency.

8. Drives: electric motor drives, hydraulics drives, hand drives.

9. Types of pulleys.

10. Types of ropes, durability and calculations.

11. Drums, sheaves, rope connections, chains.

12. Mechanical components for drive systems, mechanical brakes, safety hand cranks.
Hoists and winches.

13. Lifting mechanisms, driving mechanisms, wheels and wheel calculations.

14. Classification of hoisting appliances and their component parts.

15. Fatigue strength, basic calculations, sizing criteria.

Exercises

1. Auditorijl exercises.
Examples of computation, analysis and design of the lifting and conveying elements.

2. Design exercises. Examples of computation, analysis and design of the lifting and conveying elements.

3. Design exercises. Examples of computation, analysis and design of the lifting and conveying elements.

4. Design exercises. Examples of computation, analysis and design of the lifting and conveying elements.

5. Design exercises. Examples of computation, analysis and design of the lifting and conveying elements.

6. Design exercises. Examples of computation, analysis and design of the lifting and conveying elements.

7. Design exercises. Examples of computation, analysis and design of the lifting and conveying elements.

8. Preliminary exam 1.

9. Design exercises. Examples of computation, analysis and design of the lifting and conveying elements.

10. Design exercises. Examples of computation, analysis and design of the lifting and conveying elements.

11. Design exercises. Examples of computation, analysis and design of the lifting and conveying elements.

12. Design exercises. Examples of computation, analysis and design of the lifting and conveying elements.

13. Design exercises. Examples of computation, analysis and design of the lifting and conveying elements.

14. Design exercises. Examples of computation, analysis and design of the lifting and conveying elements.

15. Preliminary exam 2.

Compulsory literature:

D.Ščap, Prenosila i dizala, Podloge za konstrukciju i proračun, Liber, Zagreb, 1990.

D.Ščap, Prenosila i dizala, udžbenik u izradi (available for students in electronical format).

D. Ščap, Z. Herold, M. Hoić: Zbirka zadataka iz prenosila i dizala (under development - available for students in electronical format).

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